# 1999 Lexus GS400 Gas Pedal

**URL:** <https://community.cartalk.com/t/1999-lexus-gs400-gas-pedal/47457>\
**Category:** Power/Fuel\
**Tags:** pedal, gs400, lexus, gasoline\
**Created:** [April 14, 2010, 4:23pm UTC](https://community.cartalk.com/t/1999-lexus-gs400-gas-pedal/47457 "2010-04-14T16:23:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![icehat20b](https://avatars.discourse-cdn.com/v4/letter/i/e99b99/32.png) [@icehat20b](https://community.cartalk.com/u/icehat20b)\
**Post date:** [April 14, 2010, 4:23pm UTC](https://community.cartalk.com/t/1999-lexus-gs400-gas-pedal/47457/1 "2010-04-14T16:23:51Z")

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My altinator, radio,starter fuse blew. I replaced them and the car start with normal idle rpm. When i try to drive, my gas pedal doesn’t respond until it almost hit the floor. Is there another fuse or reset that I could do myself to fix this?  
  
  
  
 Thanks,  
  
 HT

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [April 14, 2010, 4:59pm UTC](https://community.cartalk.com/t/1999-lexus-gs400-gas-pedal/47457/2 "2010-04-14T16:59:59Z")

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If you are mechanically inclined you can replace your throttle position sensor. Sounds like it’s malfunctioning.

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<div class="post-metadata">

**Author:** ![icehat20b](https://avatars.discourse-cdn.com/v4/letter/i/e99b99/32.png) [@icehat20b](https://community.cartalk.com/u/icehat20b)\
**Post date:** [April 15, 2010, 2:23am UTC](https://community.cartalk.com/t/1999-lexus-gs400-gas-pedal/47457/3 "2010-04-15T02:23:54Z")

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Thanks missileman for the reply. Where is this throttle sensor located? Thanks

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<div class="post-metadata">

**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [April 15, 2010, 2:47am UTC](https://community.cartalk.com/t/1999-lexus-gs400-gas-pedal/47457/4 "2010-04-15T02:47:38Z")

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It’s attached to your throttle body. Just follow the throttle linkage. It’s usually black plastic with a wired connector. It looks like this: [http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?displayName=Throttle+Position+Sensor&currentPage=1&categoryDisplayName=Engine+Management&navValue=15900136&itemId=136-0&parentId=59-0](http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?displayName=Throttle+Position+Sensor&currentPage=1&categoryDisplayName=Engine+Management&navValue=15900136&itemId=136-0&parentId=59-0)